Cultivator



(No Model.) r 2 Sheets-Sheet 1. E. A. OVENSHIRE.

GULTIVATOR. No. 543,451. Patented July 23, 1895.

""H Mliii 6 (No Model.)

' 2 Shets-Sheet 2.

E. A. OVENSHIRE. 1

GULTIVATOR. No. 543,451.

' Patented July 23, 1895 5. mung.

UNITED STATES PATENT OFFI E.

.ELIJAH A. OVENSHIRE, OF DETROIT, MICHIGAN.

C U LTIVATO R.

SPECIFICATION forming part of Letters Patent No. 543,451, dated July 23,1895. Application filed geptember 24, 1894. $erial No. 523,939. (Nomodel.)

To all whom it may concern:

Be it known that I, ELIJAH A. OVENSHIRE, a citizen of the United States,residing at Detroit, in the county of Wayne and State of Michigan,haveinvented certain new and useful Improvements in Cultivators, of whichthe following is a specification, reference being had therein to theaccompanying drawings.

The invention consists in the construction of a cultivator-sectioncomprising drag-bars,

cross-bars pivoted to the drag-bars, and teeth rotatorily andlongitudinally adj ustably secured to said cross-bars, whereby thearrangement of the cross-bars may be varied at will and yet maintain theteeth in the same parallel relation to each otherat any point ofadjustment; further in the peculiar construction of the swivelconnection between the tooth and the cross-ban'and, further, in theconstruction, arrangement, and combination of the various parts, all asmore fully hereinafter described.

In the drawings, Figure 1 is a top .plan

view of a cultivator embodying my invenof the sections.

' lar to Fig. 2, showing the adjustments of a slight modification. Fig.6 is a section on line w as, Fig. 5. Fig. 7 is aperspective View of theunder side of one of the cross-bars and the swivel connection of thetooth.

B is the axle-bar, O the wheel, and D the laterally-swinging drag-bars,of any desired construction.

The drag-bars I preferably construct, as shown, of a head (1, havingsockets on each side in which the separated bars I) are secured. Thesebars are secured together only by the head at the front and the clampingplates for the cross-bars in rear of the head.

E are tooth-carrying cross-bars, which are preferably of theconstruction shown in Figs. 6 and 7.

Near one end the cross-bars have an aperture to receive theclamping-bolt c for securing the cross-bar to the drag-bar. This boltpasses through the plate (1, between the bars I) and through the platee, and in case of the rear cross-bar through the spindle f of thehandle-socket g.

dis a notched flange on the cross-bar around the bolt. j is acorresponding toothed bearing on the under side of the plate (1,engaging with the notches in the flange, and his a ringfiange engagingwithin the flange 'i.

Z are lugs on the upper face of the plate 01, between and outside thebars of the drag-bar,

and m are like logs on the upper clampingplate, serving to hold theseplates constantly in the same relation to the drag-bar.

Byloosening the bolt 0 the cross-bar may be turned at any desired angleto the dragbar, and ,in tightening the bolt the notched bearing on theplate (1 and the cross-bar hold the parts firmly in their adjustedpositions.

The securing and adjusting devices for the teeth are preferably of thefollowing construction: At such points in the cross-bar as the teeth areto be secured Iform a longitudinal slot G, through which a clamping-boltH is adapted to pass. This bolt likewise passes through the tooth I, therotary socketplate J, and the sliding plate K. The plate J has a socketor bearing on its under' side formed between flanges J to receive the"tooth. On its upper side it is provided with a circular notched bearingL, adapted to engage a complementary notched bearing M on the under faceof the plate K. This plate K, on its upper face, is provided with lu'gsN, which engage in the slot G and form a guide for this plate in itslongitudinal adjustment. It is also provided near its edge with ribs 0,adapted to engage with longitudinal notched bearings P on the under faceof the cross-bar parallel with the slot G, which acts (when the boltclamps the .parts together) to prevent the plate K from longitudinalmovement. I may arrange such slots G and bearings at each end of thecross-bar, and I may arrange an'intermediate bearing, as shown in Figs.6 and 7.

The parts being thus arranged and constructed, it is evident that thecross-bars carrying the teeth may be adjusted longitudinally on thedrag-bars, and may be adjusted the teeth may be adjusted to or from eachother, so that they may, if desired, be maintained at the same distanceapart, no matter what angle the cross-bars assume to the dragbars, andmay be kept with the teeth always at the proper angle to the line ofdraft. This could not be accomplished if it were not for the fact thatthe teeth are longitudinally adjustable on cross-bars, as Well as havinga rotatory adjustment thereon.

\Vhile I have shown a specific form of devices intended to permit thelongitudinal and rotary adjustment of the teeth on the crossbars, andfor permitting the angular adjustment of the cross-bars on the drag-bar,I do not'desire to be limited to such devices, although I consider thedevices shown the preferable construction.

What I claim as my invention is 1. In a cultivator, the combination witha drag-bar comprising two parallel bars, of a plurality of independentcross-bars having overlapping inner ends, and means for adjustablysecuring the cross-bars to the dragbar at different points and forsecuring the cross-bars at varying angles relative to the drag bar,substantially as described.

2. In a cultivator, the combination of the head at having sockets in thesides, the separated bars 19 secured at their forward ends in saidsockets, clamping plates above and below said bars, a cross bar, adjustably engaging the lower clamping plate and a clamping bolt forclamping the parts together, substantially as described.

3. In a cultivator, the combinationvof a crossbar having longitudinalslots therein, the clamping bolts passing through the cross bars in saidslots, the sliding plate K devices to prevent the rotation of saidplate, the rotatorily adjustable plate J, means for preventing therotation of the plates in relation to each other, and the tooth securedto the plate J, substantially as described.

4. In a cultivator, the combination with the drag bar, of a cross barlongitudinally slotted and having an annular notched flange on its upperface and projections adjacent to the slots on its under face, a clampingplate on the upper face having projections engaging the notched flange,abolt for clamping the plate to the cross bar and the cross bar to thedrag bar, teeth, clamping plates between the teeth and cross bar havingprojections 'engaging the projections on the cross bar, and bolts forclamping the teeth to the bar, substantially as described.

In testimony whereof I affix my signature \Vitnesses:

R. H. LOGAN, L. M. VAN RIPER.

